ammonites
Ectocentrocristus foxi Rigby, Jr. and Wolberg 1987 (mammal)

Mammalia - Theriiformes - Herpetotheriidae

Full reference: J. K. Rigby, Jr. and D. L. Wolberg. 1987. Geological Society of America Special Paper 209

Belongs to Ectocentrocristus according to J. A. Case et al. 2004

Sister taxa: none

Type specimen: Its type locality is Clambank Hollow Quarry, which is in a Judithian fine channel fill claystone in the Judith River Formation of Montana

Ecology: ground dwelling omnivore